Rotary motor for driving boiler-tube cleaners.



- I H. F. & H. G. WEINLAND. noun MOTOR roB DRIVING BOILER TUBE CLEANERS.

978,088. Patented Dec. 6; 1910. 28HBETBSHBBT 1- APPLIOATIPH FILED JULY 29, 190B.

v H. r. '& H. e. WBINLAND. ROTARY MOTOR FOR DRIVING BOILER TUBE OLBANERS.

APPLICATION FILED JULY 29, 190B.

Patented nee-.6, 1910.

z sums-41mm Fig.3.

Ill

1 UNITED STATES PATENT OFFICE. 1

HENRY r. WEINLAND AND HEBMON e. WEINLAND, or srnmsrmnn, onto, ASSIGNOBS TO THE LAGONDA MANUFACTURING COMPANY, OF SPRINGFIELD, OHIO, A 603-.

PORATION OF OHIO.

ROTARY MOTOR. FOR DRIVING BOILER-TUBE CLEANERS.

To all tehom it may concern:

Be it known that we, HENRY F. WEINLAND and HERMON G. WEINLAND, citizens of the United States, residing at Springfield, in

the county of Clark and State of Ohio, have.

invented certain new and useful Improvements 1n Rotary Motors for Driving Boiler- Tube Cleaners, of which the following is a specification, reference being had therein to the accompanying drawings.

'Our lnvengon relates to rotary motors and more especially to a motor 0 erated by air' for cleaning boiler tubes :1 though it I may be driven by steam and may be used for otherpurposes. I. D

The object of our lnvention is to provide a simple, strong and effective motor of few parts and easy to operate. 1 A motor of this character runsat a very high speed and is subject to severe shocks and strains. To meet these requirements two exceptionally strong bearings are provided and to obtain greater stability the distance between them is increased by having the front bearing carried in a bracket extending outwardly from the front head, the construction'being such that this bearing is cooled by the exhaust from the motor. A like bracket extends from the rear or feed head leaving the rear bearing exposed to be cooled by water which accumulates back of the motor, the best practice requiring that where air motors are em: ployed to introduce water under pressure into the tube being cleaned to wash the dis 1:5"i%tegrated scale from the tube.

A further object is to provide means in the front bearing to take the end thrust in both directions.

With these and other objects in View our invention consists of the constructions and combinations hereinafter described and set forth in 'the claims.

In the accompanying drawings Figure 1 is a motor embodying our invention shown in operative position in the .tube of a boiler. Fig. 2 is a longitudinal section of the motor taken on the line D I) of Fig.6 through the exhaust ports looking in thedirection of the arrows. Fig. 3 is a longitudinal section of themotor on the line E E of Fig. 5 through the inlet ports lookingin the direction of thearrows. Fig. 4 is a cross section of the motor on the line B B of Fig. 3 look- Specification of Letters Patent. Application filed July 29, 1908. Serial No. 445,950. 7

. hereinafter described. An exhaust hea Patented Decfifi, 1910.

ing in the direction of the arrows. Fi 5 is a cross section of the motor on the ine C. C. of Fig. 3 looking in the direction of the arrows. Fig. 6 is a cross section of the motor on the line A. A. of Fig. 3 looking in the direction of the'arrows.

Like numerals represent the same parts in the several views.

In the drawings 1 represents the casing of a motor having a removable head 2 seats against an internal shoulder 3 of the casing, the head being made with a shoulder 4 against which a ring 5 screwthreaded into 'the casing as shown is adapted to bear to Said head is pro-1 hold the head in place. vided with outwardly extending arm 6 forming a bracket terminating in a hub 7 havin a recess or chamber 8 with a screw threa ed opening as shown to which the feed hose 37 is secured. Ports 9 lead from said chamber in the hub through the arms and head to o'rts 10 in the casing that open into the casing chambers, the construction being such as to leave an open space 11 between the head and hub' for the pur ose 12 is shown screw threaded directly into the casing and is provided with outwardly extending arms 13 forming a bracket terminatingin' a hub 14 with a reduced portion 15 and a cap 16 screw threaded thereon as shown, the construction being such as to to take the end thrust in both directions.

A removable bushing 21 is preferably provided to form the bearing for the shaft and the shaft has a collar 22 thereon preferably formed integrally therewith; the bushing rests against a shoulder 23 of the hub and takes the end thrust in one. direction and the cap 16 inthe other; and spacing washers 24 are preferably provided between the collar and the bushing and cap. A key 25 fixed on the shaft 18 and loosely fitting in a recess in the runner 17 allows the shaft, to move longitudinally through the runner so that when the spacing washers 24 become worn the shaft will have necessary play through the runner to prevent the end'thrust binding the runner in either end of its Chamber as would be the caseif the runner were fixed on theshaft.

Ports 26 in the casing register with the ports 27 of the head 12, said lastnamed ports being made larger at the outer end as shown and given an inwardly inclined direction to discharge against the hub 14 so that when air is used as the motive agent it will cool the bearing in the hub.

A chamber of such form and dimensions is provided in the casing 1 that when the runner 17 is mounted therein it will contact the walls of the chamber in two places opposite each other forming two oppositely disposed crescent shaped chambers 28 and 29 chan1bers28 and 29 in a well known manner.

The operation of the motor will be readily understood, the actuating medium being introduced through the ports 9 and 10 to the chambers 28 and 29, move the paddles through the chambers and escapes through the exhaust ports 26 and 27, the paddles successively operating through each of the wear or cut the walls of the chamber and destroy the efliciency of the motor and shorten itslife. To overcome thiswe case harden the walls of the chamber and make the paddles of softer meta-l whereby the tendency to cut the walls is almost if not entirely eliminated. The paddles take the' wear,

give a good length of service and can be rea 11y replaced at small cost. Furthermore we preferably provide four of the paddles which when equally spaced from each other brings them into operative position so that the runner is given substantially a constant 'torque throughout its revolution .and avolds dead center:

Where air is employed as the motive agent and the motor is used for driving boiler -tube cleaners it has been found that the exhaust air isnot suflicient to carry off thedisintegrated scale and the work is very 'much facilitated by introducing into the tube bemg cleaned water under pressure and "We have shown in Fig. 1 a feed Water hose 38 leading from suitable source of supply for this purpose. The water accumulates back of the motor before passing between the motor casing'an'd tube and the space between the head 2 and hub 7 leaves said head, the end of the shaft 18 and its bearing 19 exposed to the water by which they are cooled; and further the water in passing aids the discharge from the motor in cooling the front bearing. i

An oil hole 32 through the hub 7 provides means tointroduce a lubricant to the cham- Having thus described our invention, we

claim J 1. In a rotary motor, a casing, a runner, a driving shaft, a feed head, a front head having an outwardly extending bracket, a bearing carried by the bracket, said bracket having an open space between the head and bearing and exhaust ports through the head adapted to discharge against: said bearing, substantially as described.

2. In a rotary motor, acasing, a runner, a-'-- driving shaft, a feed head, a discharge head having an outwardly extending bracket with a bearing for the shaft, said bracket being formed with an open space between the head and bearing, substantially as described. a

3. In a rotary motor, a casing, a runner, a driving shaft, a feed head, a discharge head having an outwardly extending bracket with a bearing in which said shaft is journaled and abutting portions on said shaft and bracket to take the end thrust in both directions, said bracket being formed with an open space ,between the head and bearing,

substantially as described.

4. In a rotary motor a casing, a runner, a driving shaft having a collar thereon, a feed head, a front head with an outwardly extending bracket terminating in a hub like portion having an internal, shoulder, a removable bushing forming a bearing for the shaft and adapted to abut on said shoulder to take-the end thrust on the collar in one direction and acap secured to said hub adapted to take the end thrust in the opposite direction, said bracket having an open space between said head and hub portion and exhaust ports through said head adapted to dis'chargeagainst said hub bearing portion, substantially as described.

5. In a rotary motor, a casing, a runner, a driving shaft having a collar thereon, a feed head, a front head removably secured to the to abut on said shoulder and take the end between said shaft collar and the bushing thrust on the shaft collar in one direction, a cap adapted to be screwed onsaid reduced portion and to take the end thrust in the opposite direction, spacing rings interposed and cap, said lmb having an annular chamber about said bushing, a feed hole to said chamber, the bushing having openings from the chamber to the shaft, said bracket having an open space between the head and hub and exhaust ports through said heads adapted to discharge against said hub hearing portion, substantially as described.

.6. In a rotary motor, such as described, a runner, a casin forming a chamber for the runner, a hea therefor, havin an outwardly extending bracket forme with one or more arms terminating in a hub having a chamber for the motive agent supply and ports through the head and arm or arms eading from said hub chamber to the casing chamber, substantially as described.

7. In a rotary motor such as described, a runner, a casing forming a chamber for the runner, a head therefor havin an outwardly extending bracket formed with one or more arms terminating in a hub having a chamber for the motive agent supply and ports through the head and arm or arms leading from the hub chamber to the casing chamher, a driving shaft and a bearing in said head for the shaft, said'braeket forming an .open space between said head and hub exposing scribed.

8. In a rotary motor such as described, a runner, a casing forminga chamber for the runner, a removable head therefor having an outwardly extending bracket formed with one or more arms terminating in a hub having a chamber ada ted to receive the motive supply and ports t rough the head and arm said bearing, substantially as de- '-or arms leading from the hub chamber to the casing chamber, a driving shaft and a removable bearing in the head for the shaft,

said bracket forming an open space between the head and hub exposing said bearing, substantially as described.

9. In a rotary motor such as described, a easin having a shoulder in the bore or cham er thereof, a head wit-h an outwardly extending bracket formed of one or more arms terminating-in a hub having a chamber to receive the motive aent and ports leading from said hub cham r through the arm or arms and head to the casing chamber, said head being adapted to rest a ainst the shoulder of the casm a shoul or on the head and a binding ring secured to the casing and adapted to rest against the shoulder of the head to hold the head in place, substantially as described.

10. In a rotary motor such as described, a runner, a casing forming a chamber for the runner, a head therefor having an outwardly extending bracket formed with one or more arms terminating in a hub having a chamber to receive the motive agent and ports leading from said chamber through the arm or arms and head to the casing chamber, said hub having a feed hole from the exterior thereof to the chamber therein to introduce a lubricant, substantially as described.

11. In a rotary motor, a runner, a driving shaft, a casing formin a chamber for the runner with feed and discharge heads at opposite ends thereof, an exposed bearing. in

the feed head, said dischar e head having an outwardly extendin brac et with a bearing for the shaft, said racket being formed with an open space between the headand bearin substantially as described.

' 12. n a rotary motor, a runner, a driving shaft, a casing forming a chamber for the runner with feed and discharge heads at opposite ends thereof, an exposed bearing in the feed head, said discharge head .having an outwardly extending bracket with a bearing in which said shaft is 'ournaled and abutting portions on said s aft and bracket to take the end thrust in both directions, 'said bracket being formed with an open space between the head and bearing, substantially as described.

1%; In a motor such as described, a casing,

an internal shoulder, a removable bushing forming a bearing for the shaft and adapted to abut on said shoulder to take the end thrust on the collar in one direction andaa cap secured to said hub adapted totake the end thrust in the opposite direction and spacingwashers interposed between and collar and the bushing and cap, shbstalr tially as described.

In testimony whereof, we hereunto aflix our signatures in the presence of two wit.-

nesses.

HENRY F. WEINLAND. HERMON G. WEINLAND.

'Witnesses:

, QARL CASKEY, Gnovnn ILGEN. 

